Feeling sore in your pelvic area, groin, or vulva during pregnancy is extremely common, and there are several distinct reasons it happens. The soreness can show up as early as the first trimester but tends to intensify during the second and third trimesters as your body adapts to the growing weight and hormonal shifts of pregnancy. Understanding the specific type of soreness you’re experiencing can help you figure out what’s causing it and what will actually help.
How Pregnancy Hormones Loosen Your Pelvis
Starting around weeks 10 to 12, your body begins producing higher levels of a hormone called relaxin. Its job is to soften the connective tissue holding your pelvic bones together so your body can eventually accommodate delivery. Relaxin does this by changing the structure of collagen in your ligaments, making them stretchier and more flexible than usual.
The trade-off is that this loosening can make your pelvic joints less stable. Ligaments that normally keep the pelvis locked in place, including those around your lower back and sacrum, start allowing more movement than your body is used to. That extra movement is what creates the deep, achy soreness many pregnant people feel in the groin, pubic bone, and lower pelvis. Progesterone and estrogen amplify the effect, further softening muscle and tissue throughout the pelvic floor.
Pelvic Girdle Pain and Pubic Symphysis Dysfunction
If the soreness is concentrated at the front of your pelvis, right at the pubic bone, you may be dealing with symphysis pubis dysfunction (SPD), a specific form of pelvic girdle pain. The pubic symphysis is the joint where the two halves of your pelvis meet at the front, and when relaxin loosens it too much, that joint can shift and become inflamed.
SPD produces a distinctive set of symptoms: shooting pain at the pubic bone, pain that radiates into the groin, inner thighs, or perineum, and a clicking or grinding sensation in the front of the pelvis. The pain typically flares during everyday movements like walking, climbing stairs, turning over in bed, or standing on one leg. It often eases with rest. Some people also notice a waddling quality to their walk or find it difficult to take full-length strides. SPD most commonly appears around 30 weeks but can start earlier.
Round Ligament Pain Feels Different
Round ligament pain is a separate issue that’s easy to confuse with pelvic girdle pain but has a different cause and pattern. The round ligaments are two cord-like structures that support the uterus on either side, anchoring it to the groin. As your uterus grows, these ligaments stretch and can spasm.
The key distinction: round ligament pain is felt in the lower abdomen near the hips and groin, tends to be sharp and sudden rather than constant, and typically lasts minutes to hours before resolving on its own. It’s most common during the second trimester. Pelvic girdle pain, by contrast, sits deeper in the pelvis and lower back, often extends into the upper thighs and perineum, and is more persistent.
The Weight of Your Baby on Your Pelvic Floor
Your pelvic floor is a hammock of muscle stretching across the bottom of your pelvis, and during pregnancy it’s doing double duty. It supports the growing weight of your baby, uterus, placenta, and amniotic fluid while simultaneously being softened by pregnancy hormones. As pregnancy progresses, this combination creates increasing strain, which many people feel as a heavy, pressure-like soreness deep in the pelvis or vaginal area.
In the third trimester, this pressure often intensifies when your baby drops lower into the pelvis in preparation for birth, a process sometimes called “lightening.” Once the baby’s head settles into the pelvis, it presses directly on the pelvic floor muscles and nearby nerves. You may feel like the baby is pushing straight down, especially when standing or walking. This is normal, but the sensation can be genuinely uncomfortable.
Vulvar Varicosities
Some pregnancy soreness “down there” isn’t muscular or skeletal at all. Vulvar varicosities are swollen veins on the outer surface of the genitals, similar to varicose veins in the legs. They develop because the increased blood volume of pregnancy, combined with the weight of the uterus pressing on pelvic blood vessels, slows the return of blood from the lower body.
The most common symptoms are a feeling of fullness or pressure in the vulva, along with generalized swelling and discomfort. In more pronounced cases, the veins can become visibly raised, appearing bluish and bumpy. Vulvar varicosities don’t always cause pain, but when they do, it’s typically a dull, throbbing ache that worsens after standing for long periods. They almost always resolve on their own after delivery.
Yeast Infections and External Soreness
Pregnancy raises your risk of vaginal yeast infections because higher estrogen levels change the sugar content of vaginal secretions, creating a more favorable environment for yeast to grow. A yeast infection can cause external soreness, itching, and redness around the vulva that feels very different from the deep, pressure-like pain of pelvic girdle issues. If the soreness is accompanied by itching, burning during urination, or a thick white discharge, a yeast infection is worth considering. These are treatable during pregnancy with topical antifungal medications.
What Helps With the Soreness
For pelvic girdle pain and general pelvic pressure, a maternity support belt can make a meaningful difference. Studies on support garments found they reduced pain scores by about 34 to 36 percent. These belts work by stabilizing the pelvis and taking some of the load off loosened ligaments. They’re most helpful during activities that involve being on your feet.
Gentle stretching and pelvic exercises can also ease soreness over time. A standing pelvic tilt, done by pressing the small of your back flat against a wall and holding for several seconds, stretches the lower back muscles that connect to the pelvis. The classic hands-and-knees stretch, where you round your back like a cat and then relax it flat, targets the same area. Starting slowly and working up to about 10 repetitions daily is a reasonable pace for most pregnancies.
For vulvar varicosities, lying down to take pressure off the pelvic veins, avoiding prolonged standing, and wearing supportive undergarments can reduce symptoms. Cold compresses applied to the vulva may also relieve the throbbing sensation. For round ligament pain, changing positions slowly and avoiding sudden movements helps prevent the sharp spasms.
When Soreness Signals Something Else
Most pelvic soreness during pregnancy is a normal consequence of the physical changes your body is going through. But certain patterns of soreness warrant prompt attention. Regular or frequent tightening of the belly, especially before 37 weeks, can indicate preterm labor rather than ordinary pelvic pain. Vaginal spotting or bleeding, a gush or steady trickle of watery fluid, or discharge that’s bloody or mucus-filled are also signs that something beyond routine soreness is happening. Soreness that comes and goes at regular intervals, like contractions, is different from the steady ache of ligament strain or pelvic pressure, and that rhythmic pattern is the key thing to watch for.